Elecbee 1Channel 12V DC RS485 MODBUS RTU Multi-function Relay Module PLC Controller for Smart Home Serial Port Module

SKU: EB0046194

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Key Features

Features:

Multi-Mode Flexibility: Equipped with 6 working modes (Open, Close, Jog, Self-Lock, Interlock, Delay) and dual control methods (AT Command & MODBUS RTU), this relay module adapts to diverse smart home automation needs, from simple on/off control to complex interlocking systems.
Scalable Control & Compatibility: MODBUS RTU mode supports up to 32 devices in parallel for large-scale setups, while AT Command (via Serial Assistant) and MODBUS (via Modbus Poll or Serial Assistant) ensure easy integration with existing programming tools.
High Load Capacity: Handles robust loads up to 10A across multiple voltages (250VAC/125VAC/30VDC/28VDC/12VDC), making it suitable for controlling lights, motors, and appliances in smart home environments.
Compact & Energy-Efficient: Measuring just 45×30×18mm and weighing 18g, its ultra-small design fits tight spaces. Operates on 12V DC with low power consumption (11-13mA standby, 44mA with 1 relay active) for long-term reliability.
Ideal for Smart Home PLC Integration: Designed as a PLC controller, this serial port module bridges hardware and software, perfect for DIY enthusiasts, automation developers, and industrial IoT projects requiring precise, modular control.

Specifications

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Attribute

Value

Model

RS485

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Description

>>> Manual: Click here to open <<<

-Six working modes: open, close, jog, self-lock, interlock, delay

-AT command mode and MODBUS command control mode

-Maximum delay of 9999 seconds under AT command and 255 seconds under MODBUS command

-AT command can be input by serial terminal (serial assistant); MODBUS command can be input by "Modbus Poll" in addition to serial terminal.

-Up to 32 devices can be used in parallel under the MODBUS command mode.

Specifications:

Working voltage: DC 12V

Working current: standby 11-13mA, 1 relay is on 44mA.

Size: 45 x 30 x 18 mm

Weight: 18 grams

Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC

Package Including:

1 x 1Channel RS485 MODBUS Relay
1Channel-RS485-MODBUS-RTU-Serial-Port-Multi-function-Relay-Module-PLC-Controller-for-Smart-Home-12V--1650543

Shopping Guide

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